Railroad-crossing gate.



E. ADAMS & C. NIBMITALO. RAILROAD CROSSING GATE.

APPLICATION FILED APR.14,1914.

1,1 32,821 Patented Mar. 23, 1915.

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E. ADAMS & C. NIEMITALO. RAILROAD CROSSING GATE.

APPLIOATION'PILED 1113.14.1914.

Patented Mar. 23, 1915.

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RAILROAD CROSSING GATE.

1,1 APPLICATION FILED APR.14,1914. Patented Mar' 23 1915.

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EDWARD ADAT/is AND cnARL'EY NIEMITALO, OEBELDEN, NORTH DAKOTA.

Specficationof Letters Patent.

nAILRoAD-cnossiiverl GATE.'

Patented Mar. 23,1915.

Application led `April 14, 1914. Serial No. 831,852.V

special reference'to an automatic gate ar" ranged to guard a railroadcrossing-so that animals passing along the roadwill not turn olf theroad upon the right of way of the railroad.

The principal objectof `the invention is to improve and simplify thegeneral construction of devices of this character.

A second object of the invention is to provide a gate operableautomatically when'a vehicle is driven upon certain approaches thereto.

With the above and other objects in viewV the invention consists ingeneral of certain novel constructions, combinations, and arrangementsof parts, as will be hereinafter fully described, illustrated in theaccompanying drawings, and specically claimed.

In the accompanying drawings, like characters of reference indicate likeparts in the several views, and Figure 1 is a front elevation partly insection through a gate constructed in accordance with this invention.Fig. 2 is a horizontal section on the line 2 2, Fig. 1. Fig. 3 is atransverse section through the gate. Fig. 4 is a detail view of the toppart of one of the supporting frames. Fig. 5 is a similar view of thebottom of one of the frames or legs. Fig. 6 is a detail top plan view ofa certain cross bar used herewith. Fig. 7 is a bottom plan of the crossbar at the top of the frame.

In carrying out this invention a suitable foundation 20 is providedwhich includes piers 21 whereon are located frame posts 22 having slots23 adjacent their bottoms. These frame posts are connected at theirupper ends by a cross bar 24 which is jointed to the post 22 by a tongueand groove joint 25. Mounted on the cross bar 24 are brackets 26carrying sheaves 27. At the lower end of the post 22 is a slotted crossbar 28 which has reduced ends 29 slidable in the slots 23. Secured tothis cross bar are eyes 30 and to these eyes are secured cords or wires31 which extend upwardover the sheaves and the ends of these cords areconnected to a weight 32. f

.Secured to the cross bar 28 adjacent each of the members 22is a steeppitched nut 33 wherethrough passes the reduced'and threaded end 34 ofuprights 35 which form-fthe rear portion of the gatevframe and extendupward and terminate in reduced portions 36 held in suitable sockets inthe cross bar 24. f l

Seated inthe foundationat the lower end `of each of the members 35 isasocket 37 having a rounded recess wherein-the lower end of the members35 rest.V Between this socket and the underside of the member 28 at eachend there is provided a coil spring.

38 which assists the actionof the weight 32 in counterbalancing theparts. Secured to each of the members 35-is a gate section39.'

It will bey obvious that if the memberi28` is depressedthe.uprights 35will be caused to revolve by the action of the nut and they gatesections will open. Upon allowing the cross bar 28 to rise the reverseaction takes place and the gate sections will close. In

order that a vehicle may laccomplish this the cross bar 28 is providedwith oppositely disposed pairs of rollers 39 and on'these rollers restsone end of'each of the track members 40, the other end being pivoted tothe foundation as at 41. These track members are in the form of shallowchannelsso that the wheels of the vehicle may roll straight alongthem-and the weight-thereof cause the cross bar 28 to be depressed thusoperating the gate.

It will be seen, by referring to Fig. l, that the springs 38 surroundthe lower ends of the uprights 35 so as to bear upon the lower portionsof the cross bar 28 in direct alinement with the threaded operatingportions of the device. In this manner the bar 28 will normally be urgedupwardly without a binding action at either end thereof since theplacing of the springs adjacent the operating portions will cause aneven upward pressure.

I-Iaving thus described the invention what is claimed as new, is

1. In a device of the class described the combination of a pair ofvertical frame posts, vertical uprightspivotally supported adjacent saidposts, said uprights provided with threaded portions adjacent theirlower` uprights, said frame posts provided with vertical slots adjacenttheir lower ends, a cross bar spanning the distance between said posts,said cross bar provided with a reduced integra-l end slidably mountedwithin said slots, said bar provided with a plurality of threadedopenings, said vertical uprights passing through said openings so as toallow the threaded portions thereof to engage said threaded openings,whereby upon the moving of said bar said vertical uprights will beswung, the lower ends of said vertical uprights extending for a distancebelow said bar, coiledsprings surrounding the lower ends of saiduprights, said springs adapted to bear upon said cross bar, in directalinement with the threaded openings, thereby normally forcing said barupwardly and preventing a binding action at either end of said bar, andmeans for forcing said bar downwardly and compress ing said springs.

2. In a device of the class described the combination of a pair ofvertical frame posts, vertical uprights pivotally supported adjacentsaid frame posts, said uprights provided with gate sections, saiduprights also provided with threaded portions adj acent their lowerends, said frame posts provided with vertical slots adjacent their lowerends, a cross bar spanning the distance between said posts and providedwith reduced ends slidably mounted within said slots, said cross barprovided with a plurality of openings, said uprights extendingdownwardly through said openings for a spaced distance below said bar,nuts fixedly secured upon said bar and provided with internally threadedportions surrounding said openings, said nuts adapted to engage thethreaded portions of said uprights whereby said bar will swing saidvertical uprights when the'same is moved, and coiled springs surroundingthe lower end of each vertical upright, said coiled springs normallyurging said cross bar upwardly and bearing in direct alinement with theopenings formed in said bar whereby direct pressure will be brought tobear upon the operating portions of the bar and vertical uprightsthereby preventing the bar from binding adjacent its end portions, andmeans for forcing said bar downwardly when it is desired to swing thegate sections.

In testimony whereof we hereunto affix our signatures in presence of twowitnesses.

EDWARD ADAMS. @HARLEY NIEMTALO.

Witnesses CHAs. ADAMS, ANDREW Sums.

Copies oi this patent may be obtained for ve cents each, by addressingthe "Commissioner of Patents. Washington, @3

